[It's certainly an odd thing to watch, worried for the disappearance of Lily's arm before it reappears, still attached and looking no worse for wear. He accepts the tea with a blink]

I'll rest. [It's a promise] After all, I need to keep up my strength if I'm going to keep this up much longer. But the same goes for all- or, well, most of us- so be kind to yourself as well.